电力计量数据交换 – DLMS®/COSEM 套件 – 第8-12部分：低功耗广域网 (LPWAN) 通信配置文件

[中文适用范围]： 本部分IEC 62056描述了DLMS®/COSEM在低功耗广域网（LPWAN）中的应用。它规定了如何使用基于IETF RFC 8724的适配层在各种LPWAN技术上使用COSEM数据模型和DLMS®/COSEM应用层，特别是在LoRaWAN上。本配置文件旨在与IETF RFC 8724中定义的LPWAN一起使用，特别是LoRaWAN。低功耗广域网（LPWAN）是一种无线技术，具有覆盖范围大、带宽低、数据包和应用层数据大小可能非常小以及电池寿命长等特点。本文档不提供管理LPWAN较低层的功能。DLMS®/COSEM LPWAN通信配置文件使用基于互联网标准用户数据报协议（UDP）和互联网协议（IPv6）的无连接传输层。适配层基于IETF RFC 8724，提供了头部压缩/解压缩机制和可选的分段/重组机制。SCHC压缩基于静态上下文和小上下文标识符来表示完整的IPv6/UDP/COSEM包装头部。如果需要，SCHC分段用于支持IPv6 MTU在LPWAN技术上。 [外文原描述]： IEC 62056-8-12:2023 describes the use of DLMS®/COSEM for Low-Power Wide Area Networks (LPWANs). It specifies how the COSEM data model and the DLMS®/COSEM application layer can be used over various LPWAN technologies using an adaptation layer based on IETF RFC 8724, and in particular over LoRaWAN. This profile is intended to be used with LPWANs as defined in IETF RFC 8724, in particular LoRaWAN. Low-Power Wide Area Networks (LPWANs) are wireless technologies with characteristics such as large coverage areas, low bandwidth, possibly very small packet and application-layer data sizes, and long battery life operation. This document does not provide functionality to manage the lower layers of the LPWANs. This part of the DLMS®/COSEM suite specifies the communication profile for Low-Power Wide Area Networks (LPWANs). The DLMS®/COSEM LPWAN communication profiles use connection-less transport layer based on the Internet Standard User Datagram Protocol (UDP) and Internet Protocol (IPv6). The adaptation layer is based on IETF RFC 8724 which provides both a header compression/decompression mechanism and an optional fragmentation/reassembly mechanism. SCHC compression is based on static context with small context identifier to represent full IPv6/UDP/COSEM wrapper headers. If required, SCHC fragmentation is used to support IPv6 MTU over the LPWAN technologies. This document follows the rules defined in IEC 62056-5-3:2023, Annex A, and in IEC 62056-1-0, and IEC TS 62056-1-1:2016 for its structure. See also Annex A for examples